What has lots of eyes, but can’t see?
There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units. Can you calculate the dimensions of this box with the given data?
How can you leave a room with two legs and return with six legs?
How can a man go eight days without sleep?
What does this rebus means ? PROG WORKRESS
If you say my name, I will no longer exist. What am I?
I am never scared but became petrified and can’t live in a house but would die to make one. What am I?
Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol? 19834 -----: 187 15921 -----: 153 17561 -----: 139 13734 -----: ???
What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?
81 x 9 = 801. What must you do to make the this equation true?
Can you find the thief by just looking at the picture below?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.